Raspberry Pi 4 Model-B with 4 GB RAM is the latest product in the popular Raspberry Pi range of computers. It offers ground-breaking increases in processor speed, multimedia performance, memory; and connectivity compared to the prior-generation Raspberry Pi 3 Model B+ while retaining backwards compatibility and similar power consumption. For the end-user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems.
Pi 4 B is upgraded with Latest High-Performance Quad-Core 64-bit Broadcom 2711, Cortex A72 processor clocked at 1.5GHz speed. Which is design to use 20% less power or offer 90% greater performance than its old version. Hardware upgrade on Pi4 developed for faster performance not only the loading time with all-new 1GB/2GB and 4GB LPDDR4 SDRAM variants but also in connectivity with Dual-band 2.4GHz and 5GHz, 802.11 b/g/n/ac wireless LAN and PoE capability via a separate PoE HAT.
Raspberry Pi 4 4GB technology:
Now you can enjoy 4K video using Pi 4 as video performance on Pi 4 B is also upgraded with on Board Dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, which supports H 265 Decode (4Kp60), H.264, and MPEG-4 decode (1080p60).
With the latest Bluetooth 5.0 technology make IoT solution better with 2 x Speed, 4 x Range and 8 x Data transfer speed, having such a faster and long-distance connectivity, you will experience peripheral’s Bluetooth connectivity on the next level than before. Furthermore, One big needful upgrade that Pi foundation has made in Raspberry Pi 4 B is Type-C USB Port from which Pi can take up to 3A current to operate, and hence now Pi 4 can provide more power to onboard chips and peripherals interfaced as well.
With one of latest Broadcom 2711; Quad-Core Cortex A72 (ARM V8-A) 64-bit SoC Clocked at 1.5GHz processor improved power consumption; and thermals on the Pi 4+B means that the CPU on the BCM2837 SoC can now run at 1.5 GHz; a 20% increase on the previous Pi 3 model (which ran at 1.2GHz).
Video performance on Pi 4 B is upgraded with dual-display support at resolutions up to 4K via a pair of micro-HDMI ports; hardware video decode at up to 4Kp60 which supports H 265 Decode (4Kp60); H.264, and MPEG-4 decode (1080p60).
A significant change on the Pi 4 B compared to the previous Pi 3 models is the inclusion of a new faster; dual-band wireless chip with 802.11 b/g/n/ac wireless LAN.
The dual-band 2.4GHz and 5GHz wireless LAN enables faster networking with less interference and the new PCB antenna technology allow better reception.
Latest 5.0 Bluetooth allows you to use a wireless keyboard/trackpad with more range than before without extra dongles; keeping things nice and tidy.
Enhanced Ethernet Connectivity:
The Pi 4 B has significantly faster-wired networking with USB 3.0 technology; thanks to an upgraded USB/LAN chip; and you should see speeds that are 10x faster than on previous models of the Pi.
The GPIO header remains the same, with 40 pins; fully backwards-compatible with previous boards as on the previous three models of Pi. However; it should note that the new PoE header pins may contact components on the underside of some HATs; like Rainbow HAT. Some standoffs will prevent any mischief from occurring though!
Software & OS
Download NOOBS. here. Beginners should start with the NOOBS (New Out Of Box Software) operating system installation manager; which gives the user a choice of an operating system from the standard distributions.
Raspbian is the recommended operating system for normal use on a Raspberry Pi. Find help with installing Raspbian on your Pi in our online Getting started guide.
Through the potentiometer to adjust the soil moisture control threshold, can automatically on the garden, Garden automatic watering, home flowerpot soil moisture control, various electronic games, electronic building blocks, arduino design.